CN217379178U

CN217379178U - Combined infiltration canal structure

Info

Publication number: CN217379178U
Application number: CN202221345343.8U
Authority: CN
Inventors: 秦砚瑶; 戴辉自; 刘军; 陈璞玉; 罗霞; 袁园
Original assignee: CCTEG Chongqing Engineering Group Co Ltd
Current assignee: CCTEG Chongqing Engineering Group Co Ltd
Priority date: 2022-05-31
Filing date: 2022-05-31
Publication date: 2022-09-06
Anticipated expiration: 2032-05-31

Abstract

The present application discloses a combined infiltration canal structure, which mainly relates to the technical field of environmental protection. The infiltration canal structure in this application includes an infiltration structure and an infiltration structure, and the infiltration structure includes permeable bricks, permeable layers, infiltration canals, and infiltration canal cover plates The seepage structure includes overflow pipes and perforated seepage pipes; the permeable bricks are laid on the ground, the permeable layer is laid under the permeable bricks, and a seepage channel is opened at the end of the drainage slope of the permeable layer, and the seepage channel is covered with a seepage channel Cover plate; a metal mesh cage is installed in the seepage channel, a coarse sand layer is arranged under the metal mesh cage, and a perforated seepage pipe is arranged in the coarse sand layer; an overflow pipe is installed on the side of the top of the seepage channel away from the permeable bricks. The structure is not easy to be blocked or flooded when the rainfall is heavy, which is convenient for later maintenance and cleaning, and the rainwater in the structure will infiltrate into the surrounding soil after being purified to replenish groundwater and protect the environment.

Description

Combined infiltration channel structure

Technical Field

The utility model mainly relates to the technical field of environmental protection, concretely relates to combined infiltration canal structure.

Background

With the acceleration of urbanization process, some urban flood disasters, ecological environment deterioration and other problems in China become more and more serious. The original natural greenbelt is continuously replaced by buildings and impermeable hardened pavements, the original permeability of the nature is destroyed, rainwater cannot normally seep to block the way of directly replenishing underground water by rainfall, the urban underground water level is reduced, the growth of surface plants is also influenced, and a series of problems such as a heat island effect, waterlogging and the like can be brought. The semi-permeable water surface infiltration canal system is formed by combining a semi-permeable water surface and an infiltration canal, and represents a new drainage system design concept, namely runoff zero increase, and the concept aims to enable the water balance in a city range to be as close as possible to the rainfall runoff condition before urbanization. The method has the advantages that the rainfall flood storm runoff increased due to urbanization is greatly reduced, the rainfall flood confluence time is delayed, the important effects on disaster prevention and disaster reduction are achieved, meanwhile, ground settlement can be prevented due to timely supplement of underground water, and the urban hydrological ecosystem forms virtuous cycle.

Along with the acceleration of urbanization process, present urban road is mostly the stereoplasm road surface, and the difficult effectual rainwater infiltration canal that gets into of field footpath flow in traditional road surface to lead to that the urban drainage is not smooth, the waterlogging appears. A large amount of data show that the traditional infiltration channel is easy to block, the external ground needs to be excavated for dredging and maintenance during maintenance, the workload of maintenance and construction is large, traffic jam is caused, and the maintenance cost is high.

SUMMERY OF THE UTILITY MODEL

The utility model discloses it is anticipated that a combined infiltration canal structure is provided to solve traditional infiltration canal and take place waterlogging phenomenon easily when rainfall is great, the more problem of pollutant in the initial stage rainfall runoff.

The utility model relates to a combined infiltration channel structure, which comprises an infiltration structure and an infiltration structure, wherein the infiltration structure comprises a permeable brick, a permeable layer, an infiltration channel and an infiltration channel cover plate, and the infiltration structure comprises an overflow pipe and a perforated infiltration pipe; the permeable bricks are laid on the ground, the permeable layer is laid below the permeable bricks, the end of the permeable layer in the drainage slope direction is provided with an infiltration channel, and an infiltration channel cover plate is covered on the infiltration channel; a metal mesh cage is arranged in the infiltration channel, a coarse sand layer is arranged below the metal mesh cage, and the perforated infiltration pipe is arranged in the coarse sand layer; the overflow pipe is arranged on one side of the top of the infiltration channel, which is far away from the water permeable brick.

The utility model discloses a theory of operation: during rainfall, rainwater enters the water seepage layer through the water permeable bricks, enters the water seepage channel along with the water seepage slope in the water seepage layer and the water permeable bricks, is filtered twice through the metal mesh cage and the coarse sand layer and then enters the perforated water seepage and drainage pipe paved in the coarse sand layer, the perforated water seepage and drainage pipe is finally connected with the rainwater well close to the site, and the filtered rainwater finally enters the rainwater well in the site.

When rainfall is great, the rainwater surpasses the infiltration ability of infiltration canal gradually and probably leads to the waterlogging, and the overflow pipe at infiltration canal top can directly be arranged away through the overflow pipe of excess this moment, and the overflow pipe is final to be connected with the place rainwater well that closes on, can in time arrange away a large amount of rainwater, prevents the waterlogging phenomenon.

The utility model has the advantages that:

furthermore, a water-permeable leveling layer made of coarse sand with the thickness of 30mm is laid between the water-permeable bricks and the water-permeable layer, and the leveling layer is used for leveling the pavement and is more attractive and tidy. The coarse sand clearance is great, and water can permeate, for the screed-coat that permeates water provides the infiltration ability, does not influence the infiltration effect of this structure.

Further, a concrete layer is arranged below the permeable layer. A permeable layer impermeable membrane is arranged between the concrete layer and the permeable layer. The concrete layer is used for tamping the permeable bed and the upper leveling layer, and the semi-permeable brick foundation makes the infiltration structure of the structure more durable, and the permeable bed impermeable membrane prevents rainwater from infiltrating into the concrete layer, thereby reducing the service life of the structure.

Furthermore, the inner wall of the infiltration channel is provided with an infiltration channel seepage-proofing film which is used for separating the inner wall from the metal mesh cage and the coarse sand layer. The seepage channel casting film is used for preventing rainwater entering the seepage channel from being accidentally drained away from other places, so that the rainwater purification capacity of the device is reduced.

Further, a pebble layer is arranged in the metal mesh cage, a ceramsite layer is arranged below the pebble layer in the metal mesh cage, and a layer of permeable geotextile is arranged on the outer surface of the metal mesh cage. The permeable geotextile with the pebble layer and the ceramsite layer can strengthen the permeability cleaning capability of the structure, reduce unfavorable impurities in water and improve the water quality of the seeped rainwater.

Furthermore, the metal net cage is square, positioning screw holes are fixed at the upper edges of two sides of the metal net cage, the seepage structure further comprises positioning bolts, and the positioning bolts penetrate through the positioning screw holes to be fixed on the seepage channel. The metal net cage passes through the bolt fastening on the infiltration canal, is difficult to the change position and influences the efficiency of this structure when rainstorm, and the bolt can be dismantled, conveniently takes off the metal net cage and maintains.

Furthermore, a metal cage handle is fixed on the metal net cage, and the metal cage handle is positioned at two sides which are not provided with the positioning screw holes. The metal cage handle makes things convenient for maintainer to mention the metal cylinder mould, increases maintenance efficiency.

Furthermore, a metal cage connecting plate is fixed on the metal net cage, is positioned at two sides without the positioning screw hole and is adjacent to the metal cage handle, and a connecting bolt hole is formed in the metal cage connecting plate; the water seepage structure further comprises connecting bolts, the metal net cages are tightly arranged in the water seepage channel, metal cage connecting plates on two adjacent metal net cages are overlapped, the connecting bolts penetrate through connecting bolt holes in the two overlapped metal cage connecting plates, and the connecting bolts and the metal cage connecting plates are used for fixing the relative positions of the two adjacent metal net cages to enable the two adjacent metal net cages to be connected end to end.

When the maintenance overhauls, it is comparatively loaded down with trivial details that single metal cylinder mould is changed, be convenient for maintain and overhaul, a plurality of metal cylinder moulds pass through metal cage connecting plate and bolt fastening together, constructor only needs the screw of dismantlement installation on the metal cage handle during the maintenance overhauls, and mention alright realization to the change of metal cylinder mould with the metal cylinder mould through the metal cage handle, the metal cylinder mould that couples together can once only mention a plurality ofly, constructor can select the number of the metal cylinder mould of once only changing according to self condition during the change, maintenance efficiency has obviously been improved.

Furthermore, the metal net cage is arranged on two sides which are not provided with the positioning screw holes, wherein a male buckle is fixed on one side, and a female buckle is fixed on the other side; the metal net cages are tightly arranged in the infiltration channel, and the male buckle of one metal net cage is buckled with the female buckle of the adjacent metal net cage.

When maintaining and repairing, it is comparatively loaded down with trivial details that single metal cylinder mould is changed, be convenient for maintain and repair, a plurality of metal cylinder moulds pass through the pin thread and the box lock links together, construction worker only needs to dismantle the screw of installing on the metal cage handle when maintaining and repairing, and mention metal cylinder mould through the metal cage handle alright realize the change to the metal cylinder mould, the metal cylinder mould that couples together can once only mention a plurality ofly, construction worker can select the number of the metal cylinder mould of once only changing according to self condition during the change, maintenance efficiency has obviously been improved.

Drawings

Fig. 1 is a top view of the present invention.

Fig. 2 is a cross-sectional view of the present invention.

FIG. 3 is a side view of the middle metal cage of the present invention

Fig. 4 is a schematic connection diagram of the metal cage connecting plate of the present invention.

Reference numerals in the drawings of the specification include: brick 1 permeates water, the screed-coat 2 permeates water, the permeable bed 3 permeates water, permeable bed prevention of seepage membrane 4, infiltration canal apron 5, public area afforestation 6, concrete ditch wall 7, overflow pipe 8, metal cylinder mould 9, cobble layer 10, the pottery grain layer 11, geotechnological cloth 12 permeates water, coarse sand layer 13, perforation infiltration row pipe 14, infiltration canal prevention of seepage membrane 15, concrete layer 16, plain soil tamp 17, location screw 18, connecting bolt 20, metal cage connecting plate 21, metal cage handle 23, connecting bolt hole 24.

Detailed Description

The following is further detailed by way of specific embodiments:

example 1

Example 1 a combined infiltration trench structure as shown in fig. 1 to 4 comprises an infiltration structure and an infiltration structure, wherein the infiltration structure comprises a water permeable brick 1, a water permeable layer 3, an infiltration trench and an infiltration trench cover plate 5, and the infiltration structure comprises an overflow pipe 8 and a perforated infiltration row pipe 14; brick 1 that permeates water is laid subaerial, and permeable bed 3 is laid in brick 1 below of permeating water, has laid the screed-coat 2 that permeates water in the middle of brick 1 and the permeable bed 3 that permeates water, and 3 below of permeable bed are equipped with concrete layer 16, installs permeable bed barrier film 4 between concrete layer 16 and the permeable bed 3.

The end of the permeable layer 3 in the drainage slope direction is provided with an infiltration channel, the channel wall of the infiltration channel is a concrete channel wall 7, the inner wall of the infiltration channel, which is covered by an infiltration channel cover plate 5, of the infiltration channel is provided with an infiltration channel impermeable membrane 15, a metal mesh cage 9 is installed in the infiltration channel, a pebble layer 10 is arranged in the metal mesh cage 9, a ceramsite layer 11 is arranged below the pebble layer 10, and the outer surface of the metal mesh cage 9 is provided with a layer of permeable geotextile 12. A coarse sand layer 13 is arranged below the metal mesh cage 9, and a perforated seepage and drainage pipe 14 is arranged in the coarse sand layer 13; an overflow pipe 8 is arranged on one side of the top of the infiltration canal, which is far away from the water permeable brick 1.

The metal net cage 9 is square, positioning screw holes 18 are fixed at the upper edges of two sides of the metal net cage 9, and metal cage handles 23 are fixed at two sides without the positioning screw holes 18. The seepage structure also comprises a positioning bolt which passes through the positioning screw hole 18 and is fixed on the seepage channel.

The metal net cages 9 are further fixed with metal cage connecting plates 21 on two sides without the positioning screw holes 18, connecting bolt holes 24 are formed in the metal cage connecting plates 21, the metal net cages 9 are tightly arranged in the infiltration channels, the metal cage connecting plates 24 on two adjacent metal net cages 9 are overlapped with the metal cage connecting plates 25, and the connecting bolts 20 penetrate through the connecting bolt holes 24 in the metal cage connecting plates 21 to be connected with the two metal cage connecting plates.

The seepage structure in the embodiment is arranged on a residential road, the overflow pipe 8 enters the public greening 6 beside the road and is finally connected with an adjacent site rainwater well, and the perforated overflow pipe 8 is also connected with the nearest site rainwater well. The drainage channels are arranged on two sides of the road and are adjacent to the public area greening 6. The outermost periphery of the underground portion of the structure is rammed earth 17. Under the condition of light rain, ground runoff seeps from the permeable bricks 1 to the permeable layer 3, rainwater in the permeable layer 3 transversely finds a slope and converges into the infiltration channel 7, is filtered layer by layer through the pebble layer 10, the ceramsite layer 11 and the coarse sand layer 13 and is finally discharged into a field rainwater well through the perforated infiltration exhaust pipe 14, and the number and the pipe diameter specification of the perforated infiltration exhaust pipe 14 can be adjusted according to the water collection range of a road, so that the overflowing capacity of the rainwater well is ensured.

Under the condition of heavy rain, part of surface runoff seeps from the water permeable bricks 1 to the water permeable layer 3, and rainwater laterally finds a slope and converges in the infiltration channel 7; runoff which is formed due to excessive rainfall and has no time for infiltration is directly and transversely found from the water permeable bricks 1 and flows into the infiltration canals 7. One part of rainwater is filtered layer by layer through the pebble layer 10, the ceramsite layer 11 and the coarse sand layer 13 and is finally discharged into the rainwater well through the perforated seepage pipe 14, the other part of excessive rainwater which is not seeped in time directly overflows to the rainwater well through the overflow pipe 8, the quantity and the pipe diameter specification of the overflow pipe 8 can be adjusted according to the water collecting range of a road, and the waterlogging is effectively prevented.

Example 2

Example 2 is substantially the same as example 1 except that adjacent metal cages 9 are not secured to each other by the cage connecting plates 21 and the connecting bolts 20. Two metal cage connecting plates 21 originally fixed on a single metal net cage 9 are replaced by a male buckle and a female buckle respectively, and the male buckle and the female buckle of two adjacent metal net cages are buckled together.

Claims

1. a combined type seepage canal structure, including seepage structure and seepage structure, it is characterized in that: seepage structure comprises permeable brick, permeable layer, seepage channel and seepage channel cover plate, seepage structure comprises overflow pipe and perforated seepage drain The permeable bricks are laid on the ground, the permeable layer is laid under the permeable bricks, a seepage channel is opened at the end of the drainage slope of the permeable layer, and the seepage channel is covered with a seepage channel cover plate; a metal mesh is installed in the seepage channel A coarse sand layer is arranged under the metal mesh cage, and a perforated seepage pipe is arranged in the coarse sand layer; an overflow pipe is arranged on the side of the top of the seepage channel away from the permeable bricks.

2 . The combined seepage canal structure according to claim 1 , wherein a permeable leveling layer made of 30mm thick coarse sand is laid between the permeable bricks and the permeable layer. 3 .

3 . The combined seepage canal structure according to claim 1 , wherein a concrete layer is arranged below the water-permeable layer, and a water-permeable layer anti-seepage membrane is installed between the concrete layer and the water-permeable layer. 4 .

4. A combined seepage canal structure according to claim 1, characterized in that: an seepage canal anti-seepage film is installed on the inner wall of the seepage canal, and the seepage canal anti-seepage film is used to separate the inner wall and the metal mesh. The cage is separated from the grit layer.

5. A combined seepage canal structure according to claim 1, characterized in that: a pebble layer is arranged in the metal mesh cage, and a ceramsite layer is arranged under the pebble layer in the shown metal mesh cage, and the metal mesh A layer of permeable geotextile is arranged on the outer surface of the mesh cage.

6. A combined seepage canal structure according to claim 5, characterized in that: the metal mesh cage is a square shape, positioning screw holes are fixed at the upper edges of both sides of the metal mesh cage, and the seepage structure further comprises: The positioning bolt is fixed on the seepage channel through the positioning screw hole.

7 . The combined seepage canal structure according to claim 6 , wherein a metal cage handle is fixed on the metal mesh cage, and the metal cage handle is located on the two sides where the positioning screw holes are not provided. 8 .

8 . A combined seepage canal structure according to claim 7 , wherein a metal cage connecting plate is fixed on the metal mesh cage, and the metal cage connecting plate is located on both sides without positioning screw holes and is connected to the The metal cage handles are adjacent to each other, and the metal cage connecting plate is provided with connecting bolt holes; the seepage structure also includes connecting bolts, the metal mesh cages are closely arranged in the seepage channel, and two adjacent metal mesh cages are The metal cage connecting plates are overlapped together, and the connecting bolts pass through the connecting bolt holes on the two overlapping metal cage connecting plates. The connecting bolts and the metal cage connecting plates are used to fix the relative positions of two adjacent metal mesh cages. , so that they are connected end to end.

9 . The combined seepage canal structure according to claim 7 , wherein the metal mesh cage is on both sides without positioning screw holes, one side is fixed with a male buckle, and one side is fixed with a female Buckles; the metal mesh cages are closely arranged in the seepage channel, and the male buckle of one metal mesh cage is fastened together with the female buckle of an adjacent metal mesh cage.